335
FNCA52 TJSJ 300730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST THU APR 30 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-302000-
SOUTHEAST COASTAL PLAINS-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 50
TEMP (24H TREND) 88 (+1) 71 (-2) 89
RH % (24H TREND) 55 (-5) 91 (+1) 49
WIND 20FT/EARLY(MPH) E 10 E 10 E 11
WIND 20FT/LATE(MPH) SE 12 NE 9 SE 12
MIXING HGT(FT-AGL/MSL)4240 4710
TRANSPORT WND (MPH) E 10 E 12
VENT RATE (KT-FT) 38160 47100
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-302000-
SOUTHERN HILLS-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 10 60
TEMP (24H TREND) 84 (+2) 68 (-3) 85
RH % (24H TREND) 67 (-5) 98 (+5) 64
WIND 20FT/EARLY(MPH) E 10 E 9 E 10
WIND 20FT/LATE(MPH) SE 10 E 8 SE 10
MIXING HGT(FT-AGL/MSL)4690 4950
TRANSPORT WND (MPH) E 9 E 10
VENT RATE (KT-FT) 37520 44550
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-302000-
NORTH COASTAL PLAINS-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 30 50
TEMP (24H TREND) 88 (+1) 71 (-2) 89
RH % (24H TREND) 64 (-5) 98 (+3) 61
WIND 20FT/EARLY(MPH) E 8 E 9 E 9
WIND 20FT/LATE(MPH) E 13 SE 8 E 16
MIXING HGT(FT-AGL/MSL)3710 4490
TRANSPORT WND (MPH) E 9 E 10
VENT RATE (KT-FT) 29680 40410
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-302000-
NORTHERN HILLS-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 80 20 70
TEMP (24H TREND) 87 (+2) 69 (-2) 87
RH % (24H TREND) 66 (-4) 100 (+3) 65
WIND 20FT/EARLY(MPH) E 6 E 8 E 8
WIND 20FT/LATE(MPH) NE 10 SE 5 NE 12
MIXING HGT(FT-AGL/MSL)3940 4800
TRANSPORT WND (MPH) E 8 SE 8
VENT RATE (KT-FT) 27580 33600
DISPERSION 4 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-302000-
WEST COAST-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 30 70
TEMP (24H TREND) 89 (+1) 71 (-1) 89
RH % (24H TREND) 64 (-4) 99 (+4) 62
WIND 20FT/EARLY(MPH) E 11 E 9 E 11
WIND 20FT/LATE(MPH) E 12 E 10 E 12
MIXING HGT(FT-AGL/MSL)4150 4730
TRANSPORT WND (MPH) SE 9 SE 9
VENT RATE (KT-FT) 33200 37840
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-302000-
EASTERN INTERIOR-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 50
TEMP (24H TREND) 86 (+2) 69 (-3) 87
RH % (24H TREND) 66 (-4) 99 (+3) 63
WIND 20FT/EARLY(MPH) SE 8 E 10 SE 10
WIND 20FT/LATE(MPH) SE 10 SE 9 E 11
MIXING HGT(FT-AGL/MSL)4920 5620
TRANSPORT WND (MPH) SE 8 SE 10
VENT RATE (KT-FT) 34440 50580
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-302000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 50
TEMP (24H TREND) 82 (+3) 68 (-3) 83
RH % (24H TREND) 70 (-8) 100 (+3) 67
WIND 20FT/EARLY(MPH) SE 6 E 6 SE 8
WIND 20FT/LATE(MPH) SE 9 SE 8 SE 10
MIXING HGT(FT-AGL/MSL)3990 4560
TRANSPORT WND (MPH) SE 8 SE 12
VENT RATE (KT-FT) 27930 45600
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-302000-
CENTRAL MOUNTAIN RANGE-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 80 10 70
TEMP (24H TREND) 85 (+5) 66 (-3) 85
RH % (24H TREND) 69 (-7) 100 (+4) 68
WIND 20FT/EARLY(MPH) SE 8 E 6 SE 8
WIND 20FT/LATE(MPH) E 8 SE 5 SE 8
MIXING HGT(FT-AGL/MSL)5090 5120
TRANSPORT WND (MPH) E 7 SE 8
VENT RATE (KT-FT) 30540 35840
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-302000-
CAYEY MOUNTAIN RANGE-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 50
TEMP (24H TREND) 81 (+2) 68 (-2) 82
RH % (24H TREND) 72 (-2) 100 (+2) 68
WIND 20FT/EARLY(MPH) E 6 E 6 E 8
WIND 20FT/LATE(MPH) SE 8 E 6 SE 9
MIXING HGT(FT-AGL/MSL)4500 4920
TRANSPORT WND (MPH) E 8 E 12
VENT RATE (KT-FT) 31500 49200
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-302000-
VIEQUES-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 50
TEMP (24H TREND) 86 (+1) 73 (-3) 87
RH % (24H TREND) 63 (-3) 92 (+3) 60
WIND 20FT/EARLY(MPH) SE 9 E 12 E 10
WIND 20FT/LATE(MPH) SE 9 E 11 E 11
MIXING HGT(FT-AGL/MSL)3240 3410
TRANSPORT WND (MPH) E 9 E 12
VENT RATE (KT-FT) 25920 34100
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-302000-
CULEBRA-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 50
TEMP (24H TREND) 88 (+2) 75 (-2) 88
RH % (24H TREND) 61 (-7) 93 (+6) 60
WIND 20FT/EARLY(MPH) SE 10 E 12 E 10
WIND 20FT/LATE(MPH) SE 10 E 11 E 10
MIXING HGT(FT-AGL/MSL)2890 3410
TRANSPORT WND (MPH) E 10 E 13
VENT RATE (KT-FT) 26010 37510
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-302000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 40 20 60
TEMP (24H TREND) 89 (+1) 72 (-2) 90
RH % (24H TREND) 53 (-5) 96 (+5) 50
WIND 20FT/EARLY(MPH) E 16 E 11 E 14
WIND 20FT/LATE(MPH) SE 17 E 13 SE 17
MIXING HGT(FT-AGL/MSL)4330 4810
TRANSPORT WND (MPH) SE 15 E 15
VENT RATE (KT-FT) 56290 62530
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-302000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 40
TEMP (24H TREND) 85 (+1) 74 (-3) 85
RH % (24H TREND) 64 (-4) 91 (+4) 63
WIND 20FT/EARLY(MPH) SE 11 E 11 SE 10
WIND 20FT/LATE(MPH) SE 10 E 11 E 11
MIXING HGT(FT-AGL/MSL)3150 3270
TRANSPORT WND (MPH) E 10 E 13
VENT RATE (KT-FT) 28350 35970
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-302000-
ST CROIX-
330 AM AST THU APR 30 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 30
TEMP (24H TREND) 86 (+1) 74 (-2) 86
RH % (24H TREND) 65 (-4) 92 (+2) 62
WIND 20FT/EARLY(MPH) SE 11 E 11 SE 11
WIND 20FT/LATE(MPH) SE 10 E 12 E 11
MIXING HGT(FT-AGL/MSL)4170 4250
TRANSPORT WND (MPH) E 10 E 14
VENT RATE (KT-FT) 37530 51000
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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